I just purchased a FujiFilm FinePix S9900W, and it does not appear to have threads to accept either a filter or a lens hood - is this correct? If so, is there any means to attach a filter and/or lens hood?

Most Fuji [and similar superzoom] cameras these days are not designed to accept filters etc onto the lens barrel
To my knowledge, Fuji no longer supplies an 'extension tube' like Panasonic does for the attachment of filters & accessories